試題詳解

46. Which of the following is an incorrect statement about the bromination of benzene by Br₂ and FeBr₃?
(A)FeBr₃ functions to increase the electrophilicity of Br₂.
(B)Formation of the sigma complex is the rate-determining step of the mechanism.
(C)The carbanionic intermediate is resonance stabilized.
(D)There is one carbon-containing intermediates in the mechanism.